APPLE AND WATERMELON SLUSH

2 large Granny Smith apples
500g chopped watermelon with seeds removed
8 mint leaves
2 tablespoons Cointreau, optional
Ice

Peel, core and chop apples. Combine in a blender with watermelon, blend until smooth. Add mint and Cointreau (if using), blend until mint is finely chopped. Pour into glasses of ice.

Serves 2.